Table 1. Baseline demographic and clinical characteristics.
| Characteristic | Probiotic Group (n=170) | Placebo Group (n=170) | |
| Age Groups (n;%) | 18-30 years | 25 (14.71) | 30 (17.65) |
| 31-45 years | 50 (29.41) | 45 (26.47) | |
| 46-60 years | 60 (35.29) | 55 (32.35) | |
| 61+ years | 35 (20.59) | 40 (23.53) | |
| (mean ± SD) | 45.2 ± 15.4 | 46.1 ± 14.8 | |
| Gender (n;%) | Male | 87 (51.18) | 81 (47.65) |
| Female | 83 (48.82) | 89 (52.35) | |
| Underlying Conditions (n;%) | Respiratory Infection | 50 (29.41) | 55 (32.35) |
| Urinary Tract Infection | 45 (26.47) | 40 (23.53) | |
| Skin Infection | 35 (20.59) | 30 (17.65) | |
| Others | 40 (23.53) | 45 (26.47) | |
| Type of Antibiotics (n;%) | Penicillin | 50 (29.41) | 55 (32.35) |
| Cephalosporin | 60 (35.29) | 65 (38.24) | |
| Macrolides | 25 (14.71) | 30 (17.65) | |
| Fluoroquinolones | 35 (20.59) | 20 (11.76) | |